具有圆形横截面的长纳米机械谐振器
Long nanomechanical resonators with circular cross-section
AI总结：
针对传统光刻制备超导纳米机械谐振器长度受限的问题，提出低成本自上而下法制备长悬浮、细直径的NbTi纳米线谐振器，适配多种金属合金，拓展了纳米机械器件的应用场景。
摘要：
用于量子研究、探测器与器件的超导纳米机械谐振器的制备传统上依赖光刻工艺，所制备的振荡器边缘锐利，且悬浮长度仅限制在几百微米。我们报道了一种低成本的自上而下制备NbTi纳米线谐振器的方法，其悬浮长度可达数毫米，直径可低至100纳米。这类纳米线具有高临界电流和临界场，是磁致动与传感的天然选择。该制备技术不受衬底材料、尺寸和布局的限制，可轻松适配于由任何具备合适延展性和屈服强度的金属或合金制备纳米线谐振器。因此，我们的工作开辟了一类新型纳米机械器件的制备途径，其应用包括量子流体的微观和介观研究、暗物质探测，以及真空中一维超导体的基础材料研究。
英文摘要：
Fabrication of superconducting nanomechanical resonators for quantum research, detectors and devices traditionally relies on a lithographic process, resulting in oscillators with sharp edges and a suspended length limited to a few 100 micrometres. We report a low-investment top-down approach to fabricating NbTi nanowire resonators with suspended lengths up to several millimetres and diameters down to 100 nanometres. The nanowires possess high critical currents and fields, making them a natural choice for magnetomotive actuation and sensing. This fabrication technique is independent of the substrate material, dimensions and layout and can readily be adapted to fabricate nanowire resonators from any metal or alloy with suitable ductility and yield strength. Our work thus opens access to a new class of nanomechanical devices with applications including microscopic and mesoscopic investigations of quantum fluids, detecting dark matter and fundamental materials research in one-dimensional superconductors in vacuum.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
